First need to join up the real property data (Open Baltimore) the sales data (provided by Steve, and with deed dates from January 1, 2010 through October 2018) so we have a neighborhood for as many sales as we can.

1,153 sales didn’t match to a block-lot in the real property table, which means that the block-lot jointly was not in the real prop table.

Also, there are about 16,000 properties in the real prop table that don’t have a neighborhood.

So after joining we end up with 9,428 sales that don’t have a neighborhood.

The real property table also gives if it is principal residence or not, so we’ll also filter for the sales that are for principal residences.

Neighborhood Summary Table, 2015-2017

We have 16062 samples to work with that are in 2015-2017, have a neighborhood, were an arms-length sale, and are the principal residence.

Which neighborhoods have less than 20 sales meeting the criteria?

84 neighborhoods have less than 20 sales meeting the criteria. We’ll exclude them going forward so we have a reasonable sample size.

Criteria & Results

There are 239 sales that meet the following criteria:

(If this yield isn’t high enough we can bump it down to the 95th percentile.)

Map

Full list

---
title: "Recent Sales Outliers"
author: "Justin Elszasz, Mayor's Office of Innovation"
email: "justin.elszasz@baltimorecity.gov"
date: "Thursday, February 28, 2019"
output:
  html_notebook:
    code_folding: hide
    fig_height: 5
    fig_width: 10
    toc: yes
    toc_depth: 2
---

```{r setup, include = FALSE, echo = FALSE, message = FALSE, cache = TRUE}
knitr::opts_chunk$set(echo = FALSE, warning = F, message = F, include = T,
                                 fig.width = 10, fig.height = 5)
```


```{r}
source("../src/00_initialize.R")
sales <- load_sales_data(load.cache = T)

library(RSocrata)
library(sp)
library(leaflet)

real.prop.url <- "https://data.baltimorecity.gov/resource/6act-qzuy.json"
real.prop <- read.socrata(real.prop.url, app_token = VARS$SOCRATA_TOKEN)

hoods <- get_neighborhood_boundaries()
```

First need to join up the real property data ([Open Baltimore]([http://data.baltimorecity.gov/Financial/Real-Property-Taxes/27w9-urtvto)) the sales data (provided by Steve, and with **deed dates from January 1, 2010 through October 2018**) so we have a neighborhood for as many sales as we can.

```{r}
sales <- sales %>% rename(sales.block = Block, sales.lot = Lot)
real.prop <- real.prop %>% rename(real.block = block, real.lot = lot)
```

```{r}
real.prop <- real.prop %>%
  mutate(real.block.clean = gsub("^0+", "", real.block),
         real.lot.clean = gsub("^0+", "", real.lot))

sales <- sales %>%
  mutate(sales.block.clean = gsub("^0+", "", sales.block),
         sales.lot.clean = gsub("^0+", "", sales.lot))
```

```{r}
sales <- sales %>%
  left_join(real.prop, 
            by = c("sales.block.clean" = "real.block.clean",
                   "sales.lot.clean" = "real.lot.clean")
            )
```

```{r}
sales %>% count(is.na(real.block), is.na(real.lot))
```

1,153 sales didn't match to a block-lot in the real property table, which means that the block-lot jointly was not in the real prop table. 

Also, there are about 16,000 properties in the real prop table that don't have a neighborhood. 

```{r}
real.prop %>% count(is.na(neighborhood))
```

So after joining we end up with 9,428 sales that don't have a neighborhood.

```{r}
sales %>% count(!is.na(neighborhood))
```

The real property table also gives if it is principal residence or not, so we'll also filter for the sales that are for principal residences.

```{r}
sales %>% count(rescode)
```


# Neighborhood Summary Table, 2015-2017

```{r}
meet.criteria <- sales %>%
  filter(year(deed.date) %in% c(2015, 2016, 2017),
         !is.na(neighborhood),
         `How Conveyed` == 1,
         !grepl("NOT", rescode)) %>%
  nrow
```

We have `r meet.criteria` samples to work with that are in 2015-2017, have a neighborhood, were an arms-length sale, and are the principal residence.

```{r}
sales.summary.15_17.by.hood <- sales %>%
  filter(year(deed.date) %in% c(2015, 2016, 2017),
         !is.na(neighborhood),
         `How Conveyed` == 1,
         !grepl("NOT", rescode)) %>%
  group_by(neighborhood) %>%
  summarise(hood.n = n(),
            hood.mean = mean(`Sales Price`),
            hood.median = median(`Sales Price`),
            hood.std = sqrt(sum((`Sales Price`-hood.mean)^2/(hood.n-1))),
            hood.95th = quantile(`Sales Price`, probs = .95),
            hood.98th = quantile(`Sales Price`, probs = .98))

sales.summary.15_17.by.hood  
```

Which neighborhoods have less than 20 sales meeting the criteria?

```{r}
sales.summary.15_17.by.hood %>%
  filter(hood.n < 20)
```

84 neighborhoods have less than 20 sales meeting the criteria. We'll exclude them going forward so we have a reasonable sample size.

```{r}
# Join the summaries to the neighborhood boundaries
hoods@data <- hoods@data %>% 
  left_join(sales.summary.15_17.by.hood,
            by = c("label" = "neighborhood"))
```

# Criteria & Results

```{r}
sales.hood.98th <- sales %>%
  left_join(sales.summary.15_17.by.hood,
            by = c("neighborhood" = "neighborhood")) %>%
  filter(year(deed.date) == 2018,
         hood.n >= 20,
         `Sales Price` >= hood.98th,
         `How Conveyed` == 1,
         !grepl("NOT", rescode)) %>%
  arrange(neighborhood)

result.sales <- nrow(sales.hood.98th)
```

**There are `r result.sales` sales that meet the following criteria:**

- Deed date was between January 1, 2018 and October 5, 2018
- Arms-length sale
- Principal residence
- Neighborhood had at least 20 sales
- 98th percentile for sales prices for their neighborhood.

(If this yield isn't high enough we can bump it down to the 95th percentile.)

```{r}
sales.hood.95th$long <- lapply(sales.hood.95th$location.coordinates, function(x) x[1]) %>% unlist()

sales.hood.95th$lat <- lapply(sales.hood.95th$location.coordinates, function(x) x[2]) %>% unlist()
```

```{r}
sales.hood.95th.geo <- sales.hood.95th %>% filter(!is.na(long))
  
sales.hood.95th.geo <- SpatialPointsDataFrame(
  sales.hood.95th.geo %>% select(long, lat), 
  sales.hood.95th.geo,
  proj4string = CRS("+proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0"))

sales.hood.95th.geo <- 
  spTransform(
    sales.hood.95th.geo, 
    CRSobj = CRS("+init=epsg:4326 +proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0")
    )

```

```{r}
sales.hood.98th$long <- lapply(sales.hood.98th$location.coordinates, function(x) x[1]) %>% unlist()

sales.hood.98th$lat <- lapply(sales.hood.98th$location.coordinates, function(x) x[2]) %>% unlist()
```


```{r}
sales.hood.98th.geo <- sales.hood.98th %>% filter(!is.na(long))
  
sales.hood.98th.geo <- SpatialPointsDataFrame(
  sales.hood.98th.geo %>% select(long, lat), 
  sales.hood.98th.geo,
  proj4string = CRS("+proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0"))

sales.hood.98th.geo <- 
  spTransform(
    sales.hood.98th.geo, 
    CRSobj = CRS("+init=epsg:4326 +proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0")
    )

```

# Map

```{r}
library(htmltools)

hoods.labels <- paste0(
  hoods$label,
  "<br>Median Sales, 2015-2017: ", as.character(hoods$hood.median)
  
)

sale.labels <- paste0(
  sales.hood.98th.geo$`House #`, " ",
  sales.hood.98th.geo$`Street Name`, " ",
  sales.hood.98th.geo$Suffix, 
  "<br>Sale Price in 2018: ", 
  as.character(sales.hood.98th.geo$`Sales Price`),
  "<br>New Owner: ", sales.hood.98th.geo$new.owner
)


leaflet() %>%
  setView(lng = -76.6, lat = 39.3, zoom = 11) %>%
  addProviderTiles(providers$Stamen.TonerLite) %>% 
  addPolygons(data = hoods, 
              weight = 2, 
              color = "black",
              opacity = 0.5,
              fillOpacity = 0, 
              label = ~lapply(hoods.labels, HTML)) %>%
  addCircleMarkers(data = sales.hood.98th.geo, 
                   radius = 2,
                   label = ~lapply(sale.labels, HTML))
```

# Full list

```{r}
sales.hood.98th 
```


